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\frac{15}{2}a^{2}+\frac{1}{6}a-1-\frac{1}{7}a+5-\left(a+\frac{1}{6}a\right)
Combine -\frac{1}{3}a e \frac{1}{2}a para obter \frac{1}{6}a.
\frac{15}{2}a^{2}+\frac{1}{42}a-1+5-\left(a+\frac{1}{6}a\right)
Combine \frac{1}{6}a e -\frac{1}{7}a para obter \frac{1}{42}a.
\frac{15}{2}a^{2}+\frac{1}{42}a+4-\left(a+\frac{1}{6}a\right)
Some -1 e 5 para obter 4.
\frac{15}{2}a^{2}+\frac{1}{42}a+4-\frac{7}{6}a
Combine a e \frac{1}{6}a para obter \frac{7}{6}a.
\frac{15}{2}a^{2}-\frac{8}{7}a+4
Combine \frac{1}{42}a e -\frac{7}{6}a para obter -\frac{8}{7}a.
\frac{15}{2}a^{2}+\frac{1}{6}a-1-\frac{1}{7}a+5-\left(a+\frac{1}{6}a\right)
Combine -\frac{1}{3}a e \frac{1}{2}a para obter \frac{1}{6}a.
\frac{15}{2}a^{2}+\frac{1}{42}a-1+5-\left(a+\frac{1}{6}a\right)
Combine \frac{1}{6}a e -\frac{1}{7}a para obter \frac{1}{42}a.
\frac{15}{2}a^{2}+\frac{1}{42}a+4-\left(a+\frac{1}{6}a\right)
Some -1 e 5 para obter 4.
\frac{15}{2}a^{2}+\frac{1}{42}a+4-\frac{7}{6}a
Combine a e \frac{1}{6}a para obter \frac{7}{6}a.
\frac{15}{2}a^{2}-\frac{8}{7}a+4
Combine \frac{1}{42}a e -\frac{7}{6}a para obter -\frac{8}{7}a.